TM-9-2520-246-34
TRANSMISSION MODEL 3052, NSN 2520-00-347-4520
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT; MAINTENANCE MANUAL
MAY 1978
TM-9-2520-246-34 - Page 12 of 153
TM 9-2520-246-34
CHAPTER 1
INTRODUCTION
Section I. GENERAL
1-1. Scope.
a.
This manual contains the direct support and
general support maintenance instructions for
transmission models 3052 and 3053A; transfer models
T-136-21 and T-136-27; power takeoff models WN-7-
28, WND-7-28, and P-136-C. This manual also
provides descriptions of these items and procedures
for troubleshooting, removal, disassembly, assembly,
cleaning, inspection, test, adjustment, installation,
repair, and rebuild, as directed by the maintenance
allocation chart.
b.
Chapter 2 contains information on repair parts,
tools, troubleshooting. general maintenance
instructions, and removal and installation of major
components.
c.
Chapter 3 contains all repair and overhaul
procedures pertinent to transmission models 3052 and
3053A.
d.
Chapter 4 provides all the repair and overhaul
procedures pertinent to transfer models T-136-21 and
T-136-27.
e.
Chapter 5 contains all the repair and overhaul
procedures for power takeoff models WN-7-28, WND-
7-28, and P-136-C.
f.
Appendix A provides a list of current and
applicable references to the transmissions, transfers,
and power takeoffs used on the 2½-ton, 6x6 series
trucks.
g.
Refer to TM 9-2520-246-34P for a listing of parts
and special tools for the maintenance of the
transmissions, transfers, and power takeoffs for the
2½-ton, 6x6 series trucks.
1-2. Maintenance Forms and Records.
Equipment maintenance forms and procedures for
their use are contained in TM 38-750, The Army
Maintenance Management System (TAMMS).
1-3. Quality Assurance/Quality Control.
Repair
and replacement standards for transmissions,
transfers, and power takeoffs are supplied in each
chapter. Through compliance with the engineering
tolerances specified in this manual for repairs and
adjustments, maintenance of quality control is
assured.
1-4. Equipment Improvement Recommenda-
tions.
EIR’s will be prepared on DA Form 2407,
Maintenance Request. Instructions for preparing
EIR’s are provided in TM 38-750, The Army
Maintenance Management System. EIR’s should be
mailed directly to: Commander, U.S. Army Tank-
Automotive Materiel Readiness Command, ATTN:
DRSTA-MP, Warren, Michigan 48090. A reply will
be furnished directly to you.
1-5. Use of Metric Measurement Units.
The
equipment described herein is nonmetric and does not
require metric common or special tools; therefore,
metric units are not supplied.
Section II. DESCRIPTION AND DATA
1-6. Description.
b. Transmissions.
a. General.
A short description covering each
transmission, transfer, and power takeoff is provided.
The descriptions are used to familiarize direct support,
general support, and depot maintenance personnel
with the different types and models of each unit. For
a more detailed description and operation of each
assembly, refer to Chapters 3, 4, and 5. Differences
between models, if pertinent, are included.
(1) Transmission models 3051 and 3053A (fig. 1-1
and 1-2) are manual shift, synchromesh, selective gear
types with five speeds forward and one reverse. The outer
cases are made of cast iron and serve as a support for the
various bearing shafts and other parts of the transmission
gear train. For a more detailed description and operation
refer to Chapter 3.
1-1
Back to Top
